| All Patents in class 123/63 |
Patents 1 -
10
of 32
      |
| Picture | Number | Date | Patentee | Title |
 | 31,722 | Mar. 19, 1861 | J.É. Lenoir | Air Engine |
| | 121,364 | Nov. 28, 1871 | A.A. Heath | Improvement in Steam Engines |
| | 132,267 | Oct. 15, 1872 | J.R. Eichenberger | Improvement in Reciprocating Steam Engines |
| | 195,585 | Sep. 25, 1877 | F. Dieckmann | Gas-Engines |
| | 260,587 | Jul. 04, 1882 | A.P. Massey | Gas Engine |
| | 272,130 | Feb. 13, 1883 | C.C. Lallement, E. Etève | Gas Engine |
| | 277,618 | May 15, 1883 | C. Shelburne | Gas Engine |
 | 291,102 | Jan. 01, 1884 | J. Spiel | Gas Motor |
 | 302,045 | Jul. 15, 1884 | J. Spiel | Gas Engine |
| | 332,315 | Dec. 15, 1885 | S. Wilcox | Gas Engine |
